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Updated: May 21, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
Published on: November 21, 2019
Characteristics and performance of an intensity-modulated optically pumped magnetometer in comparison to the
Volkmar Schultze1, Rob Ijsselsteijn, Theo Scholtes
1Institute of Photonic Technology, Albert-Einstein-Strasse 9, D-07745 Jena, Germany. volkmar.schultze@ipht-jena.de
Abstract:
We compare the performance of two methods for the synchronization of the atomic spins in optically pumped magnetometers: intensity modulation of the pump light and the classical M(x) method using B(1) field modulation. Both techniques use the same set-up and measure the resulting features of the light after passing a micro-fabricated Cs cell. The intensity-modulated pumping shows several advantages: better noise-limited magnetic field sensitivity, misalignment between pumping and spin synchronization is excluded, and magnetometer arrays without any cross-talk can be easily set up.
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